Improvement in endless rolling-gears for railroads



1. FRYE.-

Endlessoljling 'Gear for Rlil'nads. f No. 136,052. y Patented Feb. 18,1873.

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Specification forming part of Letters Patent No. 136,052, dated February 18, 1873.

To all 'whom it 'may concern: f

Be it known that I, JEss'E FRYE, of the city of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Endless RollingGear to be operated upon an endless railway or track by means of drivingwheels operated by cog-gearing situated below the roadways, and worked by stationary engines located at any suitable distances apart; and I hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanyin g drawing, which is lettered to correspond with and form a part of the specication.

To enable the public to understand the nature of my invention, and those skilled in the mechanic arts to construct andl operate the same, I will describe it as follows, to wit:

Figure lis an elevation of the face of my toothed drivin g-wheel N, which operates upon the transverse arms a a a' a' of the endless coupling-bar R R'. Fig. 2 represents two se'ctions "of Vthe divisions of my endless doublebearing rolling-gear 1 2 3 4 5 and 1' 2' '3' 4' 5', which are held in position upon the wooden or other `tracks T T' by the endless couplingbars R It'.

These connecting-bars are also provid ed with transverse tubular arms a a', arranged at equal distances apart through the bars R R' over the ent-ire roadway, and the endless-rolling gear-wheels 1 1 2 2' 33' 4 4' 5 5' may be provided with leather tires to prevent noise, or otherwise constructed; and the said wheels have two bearin gs of different diameters. The lesserbearin g revolves upon the roadways or tracks T T', while the larger bearings carry the endless platforms or carriers with the cars at four times the velocity of the smaller bearings' upon the endless tracks T T'., These double-bearin g vgear-wheels are secured upon small steel axles which revolve in one of the hollow arms'a a' at au equal distance apart the entire length of the road or endless ways T. The endless sectional guide-bar R It' has its several sections united at the ends vthereof by knuckle or universal joints, so as to form one endless sectional guide-bar that will adapt itselfandthe wheels 1 5 to the different grades or sinuosities of the road. This forms one of the most novel and important features of this invention. It must be substantially constructed in all its parts and carefully united to perform its functions along the entire endless line. One of the most important features of the endless jointed connecting-bar R is, that it receives all the power from the driving-wheels N N' collectively, while it distributes the saine equally to all the steel axles throughout the Ventire line without regard to the impingement of the toothed wheels N N' upon the transverse arms a a a' a'. Hence, it must be of great longitudinal as well as lateral stiffness, and proof against expansion and contraction, from the lost motion in the joints or otherwise. An underground route affords a more uniform temperature, by which means a great amount of contraction and expansion of the track isobviated, which is caused byachangeable atmosphere. I will assume that each division of my endless railroad requires an average of thirteen thousand pounds of dynamic force for each series of rollin g-gear of five miles, and there is a pair of driving-wheels, N N', Fig. 1, to each series and theaxles a a' being four feet apart, it would-require six thousand six hundred axles for every five miles, and about two pounds of power upon the axles a equally distributed throughout the entire length thereof; therefore, the result must be durability and safety.

The novelty of the above endless rollinggear consists in the construction and arrangement of a series of wheels, l 2 3 4 5 and 1' 2' 3' 4:' 5', hung upon steel axles and having two bearings, the lesser bearings of which revolve upon the endless ways or tracks T T', and the larger bearings carry the endless platforms or carriers upon their outer peripheries, while the jackets of the steel axles constitute and form a part of the endless sectional connecting-bar R It', which is also provided with other transverse arms, a a', to he operated upon by the fingers or teeth ofthe driving-wheels N N', which are geared upon" the shafts of the cog-gearing wheels GG', so that the whole will be operated by stationary reversible engines, all arranged and operated below the bed of the endless roadways; thereforep What I claim as new and useful, and what I wish to protect by Letters Patent of the United States, is-

1. The double bearing-wheels 1 2 3 4 5 and l 2' 3 4' 5', secured to steel axleftrees revolvi i il PATENT OFFICE.

ing in the transverse hollow arms a a', which form a part of the several sections of the coupling-bars R R', in combination with similar transverse arms arranged and forming a part of the longitudinal connecting-bar thoughout the entire line of the road.

2. The endless sectional couplings-bars R R', united by universal or knuckle joints, in combination with the driving-Wheels N N', cog- A gearing wheels G G', operated by any revers ible stationary engine suitably located below the roadbed.

In testimony whereof I hereunto subscribe my name in the presence of two witnesses.

JESSE FRYE.

Witnesses:

JAMES P. MOLEAN, J. Rrrcnm MCLEAN. 

